CN102518932A - Polyurethane composite profile and forming method for same - Google Patents
Polyurethane composite profile and forming method for same Download PDFInfo
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- CN102518932A CN102518932A CN2011104237686A CN201110423768A CN102518932A CN 102518932 A CN102518932 A CN 102518932A CN 2011104237686 A CN2011104237686 A CN 2011104237686A CN 201110423768 A CN201110423768 A CN 201110423768A CN 102518932 A CN102518932 A CN 102518932A
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Abstract
The invention relates to a polyurethane composite profile and a forming method for the same, wherein the polyurethane composite profile is made of polyurethane resins and a plurality of glass fibers. The glass fibers are densely covered to form a profile framework, and the polyurethane resins are composited with the inner surface and the outer surface of the profile framework to form the polyurethane composite profile. The polyurethane composite profile has the advantages that firstly, the profile is light in weight and high in strength; secondly, the profile is energy-saving and heat-insulation; thirdly, the profile is healthful, green, environment-friendly and remarkable in energy-saving effect; fourthly, the profile is corrosion-resistant, aging-resistant and long in service life; fifthly, the profile is fine in dimensional stability; sixthly, the profile is fine in weather resistance, fine in high-temperature resistance and better in low-temperature resistance; seventhly, the profile is fine in insulating property; eighthly, the profile is fine in vibration reducing performance; ninthly, the profile is colorful, and polyurethane composite is high in hardness and can be coated with various coatings to manufacture profiles in various colors, so that the profiles adapt to different styles and grades; and tenthly, the polyurethane composite is extremely high in fatigue resistance so that safety and reliability in use of the polyurethane composite are ensured.
Description
Technical field
The present invention relates to a kind of high tenacity, low-gravity, insulation, pass through microwave, the compound polyurethane material section bar and the forming method of corrosion-resistant and good heat-insulation effect, belong to the section bar manufacturing and the application of composite material.
Background technique
At present, the angle steel of selling on the market, i shaped steel, channel-section steel, square steel, H shape steel etc. all adopt metallic material to make.Its deficiency: the one, than great, proportion; The 2nd, heat-shielding performance is poor; The 3rd, corrosion-resistant, easy-to-rust.
Summary of the invention
Purpose of design: avoid the deficiency in the background technique, design a kind of high tenacity, low-gravity, insulation, pass through microwave, the compound polyurethane material section bar and the forming method of corrosion-resistant and good heat-insulation effect.
Design proposal: in order to realize above-mentioned purpose of design.1, adopting the selection of polyurethane resin as the composite material of section bar, is one of technical characteristics of the present invention.The purpose of doing like this is: the ⑴ polyurethane resin is compared with other resins, the advantage of compound polyurethane material: the one, and high longitudinal strength; The 2nd, increased glass felt, improved lateral performance; The 3rd, have the highest fiber capacity; The 4th, higher intensity and hardness; The 5th, increased the complexity of component; The 6th, reduced wall thickness; The 7th, stronger profiled outline can be crossed over bigger distance; The 8th, good shock resistance and good wearability; The 9th, senior accurate manufacturing and fastening significantly improves screw and extracts dynamics; The tenth, excellent surface finishment.⑵ have well weather-proof, durability: the one, have fabulous corrosion resistance; The 2nd, low water absorption rate; The 3rd, have better temperature stability; The 4th, have better light stability, aliphatic light stable resin can be arranged.⑶ better Economy: the one, reduced cost; The 2nd, content of glass fiber high (also gaining in strength simultaneously); The 3rd, stronger product can support longer span; The 4th, the pultrusion speed of higher manufacturing efficiency-has faster improved pile line operation speed.⑷ excellent in flame retardance gives out the cigarette of much less than polyester or vinyl resin.⑸ environmental protection, environmental friendliness.⑹ do not have vinyl benzene, and no superoxide produces.2, the design of polyurethane composite material product moulding technology is two of a technical characteristics of the present invention.The purpose of doing like this is: with the pultrude process of traditional unsaturated polyester glass steel profile shapes be essentially identical, different places be: the mode that the ⑴ resin injects is different, and unsaturated polyester resin is to adopt open interpolation; Polyurethane resin is the mode that adopts airtight injection.⑵ between polyurethane injection box and the goods mould, increase cooling section; In unsaturated polyester glass steel production technology is not have cooling die or cooling section.3, the employing of glass fiber mat is three of a technical characteristics of the present invention.The purpose of doing like this is: because glass fiber mat is to be made up of crisscross glass fibre, formed felt not only vertically plays stiffening rib, and laterally plays stiffening rib, and formed product not only flex resistance is strong, and fold resistance is good.
Compound polyurethane material has fabulous rigidity and intensity, and physics and mechanical property are seen attached list.Its complete part substitution of Al alloy and steel; The thermal conductivity of compound polyurethane material is 0.219 W/mk, and the thermal conductivity of aluminium is 237.00 W/mk, and the thermal conductivity of galvanized steel is 62.000 W/mk; Under identical condition; With regard to material, the capacity of heat transmission of aluminium material is 1082 times of polyurethane, and the capacity of heat transmission of galvanized steel is 283 times of compound polyurethane material; Compare the poor conductor that compound polyurethane material is a heat with galvanized steel with aluminium; Compound polyurethane material has good rigidity and intensity, and fabulous plasticity is arranged again, therefore can design the structure of glass curtain wall profile shapes die cavity according to the technical requirements of glass curtain wall, processes the profile material of different shape.
Technological scheme 1: compound polyurethane material section bar; It comprises glass fibre; Said multi beam glass fibre gather to constitute the section bar skeleton, or constitutes the section bar skeleton by the multi beam glass fibre layer that gathers with glass fiber mat, in polyurethane resin and the section bar skeleton outside compound and formation polyurethane section bar.
Technological scheme 2: the forming method of compound polyurethane material section bar; Adopt pultrusion production process; Densely covered layer of multi beam glass fibre or multi beam glass fibre and glass fiber mat are after the import that gets into section bar polyurethane resin injection mold die cavity; In section bar polyurethane resin injection mold die cavity, be evenly arranged into required section bar skeleton; This section bar skeleton is injected into polyurethane submergence in the section bar polyurethane resin injection mold, enriches by sealing through section bar polyurethane resin injection mold the time, is solidified into required section bar through cooling die cooling, heat setting mould.
Technological scheme 3: the formation system of compound polyurethane material section bar; Adopt pultrusion production process; Constitute by section bar polyurethane resin injection mold, cooling die and heat setting mould; The import of section bar polyurethane resin injection mold gets into multi beam glass fibre or the densely covered layer of multi beam glass fibre and glass fiber mat, outlet and is communicated with the cooling die import, and the outlet of cooling die is communicated with the import of heat setting mould, and the outlet of heat setting mould is compound polyurethane material section bar pultrusion outlet.
The present invention compares with background technique, and the one, high-strength light, the density of glass fiber reinforced plastic shapes is about 2.1; It is lighter 3～4 times than steel, and intensity is very big, its tensile strength 450～650MPa; Approaching with Ordinary Steel, flexural strength is greater than 1200MPa, modulus of elasticity in static bending 48000MPa; The 2nd, energy-saving heat preserving, heat insulation, the compound polyurethane material thermal conductivity is 0.219 W/mk, has only 1/100～1/1000 of metal, is good thermoinsulation material; The 3rd, health, environmental protection, energy-saving effect are remarkable; The 4th, compound polyurethane material does not contain vinyl benzene aborning, thereby can not form volatile compound VOC, so environment protection health more; The 5th, compound polyurethane material meets the index request of construction main body material among the GB6566-2001 " the radioactive material nucleic is limited the quantity of ", assay 0.2, internal exposure index 0.2, external exposure index 0.2 through testing result; The 5th, corrosion-resistant, ageing-resistant, the life-span is long; With looking up with eyes wide open compound polyurethane material is good resistant material; To acid, alkali, salt and most of organic substance, seawater and humidity all have resistivity preferably, and action of microorganisms is also had resistance; That its this specific character that has especially is fit to be used in is rainy, humidity and coastal area, and the place of the medium that is corrosive; The 6th, dimensional stability is good, and the linear expansion coeffcient of compound polyurethane material is 5.6 * 10-6/ ℃, is lower than steel and aluminum alloy, is 1/15 of plastics, so the glass good stability; The 7th, weather resisteant is good, and compound polyurethane material belongs to thermosetting plastics, promptly forms three-dimensional netted structure of molecule after the resin crosslinks, becomes insoluble not melt, also can not melt even be heated.The compound polyurethane material heat distortion temperature is more than 200 ℃, and not only resistance to high temperature is good, and resistance to low temperature is better; The 8th, good insulation preformance; Compound polyurethane material is the good insulation performance material; It is not influenced by electromagnetic wave, does not reflect radio waves, and microwave property is good thoroughly; Can bear HV and do not damage, so the compound polyurethane material section bar has special purposes to the building of open-air temporary building and communication system; The 9th, damping performance is good; The Young's modulus of compound polyurethane material is 20900; The section bar of processing with it has higher damping frequency; The combining of resin and fiber interface in the compound polyurethane material have shock-absorbing and shock resistance, avoided the structural member early damage that causes of low-resonance in working order; The tenth, fatigue resistance, the fatigue resistance of compound polyurethane material is very high, thereby guarantees Security and reliability that material uses; 11 is that compound polyurethane material has fabulous rigidity and intensity, and physics and mechanical property are seen attached list.Its complete part substitution of Al alloy and steel; The thermal conductivity of compound polyurethane material is 0.219 W/mk, and the thermal conductivity of aluminium is 237.00W/mk, and the thermal conductivity of galvanized steel is 62.000W/mk; Under identical condition; With regard to material, the capacity of heat transmission of aluminium material is 1082 times of polyurethane, and the capacity of heat transmission of galvanized steel is 283 times of compound polyurethane material; Compare the poor conductor that compound polyurethane material is a heat with galvanized steel with aluminium,, fabulous plasticity is arranged again, therefore can design the structure of section bar die cavity as requested, process the section bar of different shape because compound polyurethane material has good rigidity and intensity.
Description of drawings
Fig. 1 is the skeletal structure schematic representation of the compound angle section bar of polyurethane.
Fig. 2 is the structural representation of the compound angle product moulding of polyurethane.
Fig. 3 is the skeletal structure schematic representation of the compound I-shaped section bar of polyurethane.
Fig. 4 is the structural representation of the compound I-shaped section bar of polyurethane.
Fig. 5 is the skeletal structure schematic representation of the compound square tube shape of polyurethane section bar.
Fig. 6 is the structural representation of the compound square tube shape of polyurethane section bar.
Fig. 7 is the skeletal structure schematic representation of the compound H shape of polyurethane section bar.
Fig. 8 is the structural representation of the compound H shape of polyurethane section bar.
Fig. 9 is the skeletal structure schematic representation of the compound grooved profile of polyurethane.
Figure 10 is the structural representation of the compound grooved profile of polyurethane.
Figure 11 is the skeletal structure schematic representation of polyurethane compound circular tube shape section bar.
Figure 12 is the structural representation of polyurethane compound circular tube shape section bar.
Figure 13 is the skeletal structure schematic representation of polyurethane composite cylindrical section bar.
Figure 14 is the structural representation of polyurethane composite cylindrical section bar.
Figure 15 is the skeletal structure schematic representation of polyurethane compound thread shape section bar.
Figure 16 is the structural representation of polyurethane compound thread shape section bar.
Figure 17 is the block diagram of compound polyurethane material section bar production system.
Embodiment
Embodiment 1: with reference to accompanying drawing 1-16.The compound polyurethane material section bar; It comprises glass fibre; Said multi beam glass fibre gathers and constitutes section bar skeleton 1; Or constitute the section bar skeleton by gather layer and glass fiber mat 101 of multi beam glass fibre; Polyurethane resin 2 and the compound and formation polyurethane section bar in section bar skeleton 1 interior outside that is to say that the moulding skeleton 1 of section bar is gathered by the multi beam glass fibre and constitutes; Every glass fibre face during polyurethane resin 2 and multi beam glass fibre constitute or or the face of every glass fibre and glass fiber mat face compound fully and be compounded with bonding each other between the glass fibre of polyurethane resin 2, solidify and constitute required section bar, the outside is meant the face of every glass fibre in the polyurethane section bar in the promptly said section bar skeleton 1.The multiple glass fiber mat 101 of layer of fibers bag in the said moulding skeleton, or 101 of glass fiber mats are equipped with layer of fibers, or layer of fibers and glass fiber mat 101 stack formations.Said polyurethane section bar is angle iron-type or I-shaped section bar or grooved profile or H shape section bar or or square tube section bar.Glass fibre is that 60%-90%, polyurethane resin are 10%-40% in the said polyurethane section bar.
Embodiment 1-1: on embodiment 1 basis, 35%-40% polyurethane and 60%-75% glass can pultrusion polyurethane profile shapes, and its physical mechanical and mechanical property are better.
Embodiment 1-2: on embodiment 1 basis, 30%-35% polyurethane and 65%-70% glass can pultrusion polyurethane profile shapes, and its physical mechanical and mechanical property are good.
Embodiment 1-3: on embodiment 1 basis, 25%-30% polyurethane and 70%-75% glass can pultrusion polyurethane profile shapes, and its physical mechanical and mechanical property are better;
Embodiment 1-4: on embodiment 1 basis, 20%-25% polyurethane and 75%-80% glass can pultrusion polyurethane profile shapes, and its physical mechanical and mechanical property are best.
Embodiment 1-5: on embodiment 1 basis, 15%-20% polyurethane and 80%-85% glass can pultrusion polyurethane profile shapes, its physical mechanical and good mechanical properties.
Embodiment 1-6: on embodiment 1 basis, 10%-15% polyurethane and 85%-90% glass can pultrusion polyurethane profile shapes, and its physical mechanical and mechanical property are better relatively.
Embodiment 1-7: on embodiment 1 basis, 10% polyurethane and 90% glass can pultrusion polyurethane profile shapes, and its physical mechanical and mechanical property meet design requirement.
The physical mechanical and the mechanical property of the polyurethane profile shapes of being produced according to the above ratio; Be difference to some extent, its corresponding cost also is different, and the physical mechanical and the mechanical property of compound polyurethane material be best; Simultaneously both economical again; Polyurethane resin accounts for 20%, and glass accounted for 80% o'clock, the composite material of institute's pultrusion.
Embodiment 2: with reference to accompanying drawing 17.The formation system of compound polyurethane material section bar; Constitute by section bar polyurethane resin injection mold 3, cooling die 5 and heat setting mould 6; Section bar polyurethane resin injection mold 3 has two imports; The one, for polyurethane material feeding mouth 4 and be positioned at section bar polyurethane resin injection mold 3 tops, one is the glass fiber bundle import, and the import of section bar polyurethane resin injection mold gets into gather layer and glass fiber mat, the outlet of multi beam glass fibre or multi beam glass fibre and is communicated with cooling die 5 imports; The outlet of cooling die is communicated with 6 imports of heat setting mould, and the outlet of heat setting mould is pulled out mouth for the compound polyurethane material section bar.Said heat setting mould constitute by 2 ~ 3 heating-up zone and temperature from low to high, the temperature setting range is: 90oC ~ 250oC.Said cooling die is the water-cooled cooling die, and the temperature of its cooling water is 0oC ~ 25oC.The production beginning initial stage, note adjusting and observe the flow that is expelled to the polyurethane resin in the injection box, glass can be soaked into fully, notice that polyurethane resin does not overflow the injection box; Observe the situation that goods solidify, note the temperature of adjustment hot-die, and the speed of tractor, the moulding of goods and pultrusion speed are complementary.
Embodiment 3: with reference to accompanying drawing 3.On embodiment 1 basis; The forming method of compound polyurethane material section bar; Densely covered layer of multi beam glass fibre or multi beam glass fibre and glass fiber mat are after the import that gets into section bar polyurethane resin injection mold die cavity; Auto arrangement becomes required section bar skeleton under the effect of section bar polyurethane resin injection mold die cavity; That is to say; The shape (cross section) of section bar polyurethane resin injection mold die orifice, die cavity and required profile shapes (cross section) are identical, and this section bar skeleton is injected into polyurethane submergence in the section bar polyurethane resin injection mold, soaks into, enriches by sealing through section bar polyurethane resin injection mold the time, through cooling die cool off, the heat setting mould is solidified into required section bar; And this process is continuously, i.e. the glass fibre section bar that continuously gets into, go out to be solidified into from the pultrusion continuously of heat setting mould from the import of section bar polyurethane resin injection mold.Described compound polyurethane material is to be made up of isocyanates and the polyatomic alcohol polybasic alcohol mixed by 1: 1～1: 4.The heat curing temperature of said heat setting mould is 90 oC～250oC.Said cooling die adopts water-cooled, and the temperature of its cooling water is 0C ° ~ 25C °.
Polyurethane resin among this paper is called for short polyurethane.
Above-mentioned glass is meant glass fibre or glass fibre and glass fiber mat, or graphite fiber, or spins the synthetic fibre fiber, or reinforcing fiber such as polyster fibre, or metallicity strengthens silk; Above-mentioned glass felt is meant the glass fiber mat fiberglass gridding cloth, or glass fiber cloth or fabrics such as woven dacron or aramid fiber cloth.
What need understand is: though the foregoing description is to the mentality of designing of the present invention detailed text description of contrasting; But these text descriptions; Just the simple text of mentality of designing of the present invention is described; Rather than to the restriction of mentality of designing of the present invention, any combination, increase or modification that does not exceed mentality of designing of the present invention all falls in protection scope of the present invention.
Claims (10)
1. compound polyurethane material section bar; It comprises glass fibre; It is characterized in that: said multi beam glass fibre gather to constitute the section bar skeleton, or constitutes the section bar skeleton by the multi beam glass fibre layer that gathers with glass fiber mat, in polyurethane resin and the section bar skeleton outside compound and formation polyurethane section bar.
2. compound polyurethane material section bar according to claim 1 is characterized in that: said polyurethane section bar is angle iron-type or I-shaped section bar or grooved profile or H shape section bar or pipe section bar or square tube section bar or Deformed Steel Bars shape section bar or cylindrical section bar.
3. compound polyurethane material section bar according to claim 1 is characterized in that: the multiple glass fiber mat of the layer of fibers bag in the said moulding skeleton, or be equipped with layer of fibers between glass fiber mat, or layer of fibers and glass fiber mat stack formation.
4. compound polyurethane material section bar according to claim 1 is characterized in that: the outside is meant the face of every glass fibre in the polyurethane resin section bar or the face and the glass fiber mat face of every glass fibre in the said section bar skeleton.
5. the forming method of a compound polyurethane material section bar; Adopt pultrusion production process; It is characterized in that: densely covered layer of multi beam glass fibre or multi beam glass fibre and glass fiber mat are after the import that gets into section bar polyurethane resin injection mold die cavity; In section bar polyurethane resin injection mold die cavity, be evenly arranged into required section bar skeleton; This section bar skeleton is injected into polyurethane submergence in the section bar polyurethane resin injection mold, enriches by sealing through section bar polyurethane resin injection mold the time, is solidified into required section bar through cooling die cooling, heat setting mould.
6. the forming method of compound polyurethane material section bar according to claim 5 is characterized in that: described polyurethane resin material is to be made up of isocyanates and the polyatomic alcohol polybasic alcohol mixed by 1: 1～1: 4.
7. the forming method of compound polyurethane material section bar according to claim 5 is characterized in that: the heat curing temperature of said heat setting mould is 90oC-250oC, and said cooling die adopts water-cooled, and the temperature of its cooling water is 0oC-25oC.
8. the formation system of a compound polyurethane material section bar; It is characterized in that constituting by section bar polyurethane resin injection mold, cooling die and heat setting mould; The import of section bar polyurethane resin injection mold gets into multi beam glass fibre or the densely covered layer of multi beam glass fibre and glass fiber mat, outlet and is communicated with the cooling die import; The outlet of cooling die is communicated with the import of heat setting mould, and the outlet of heat setting mould is compound polyurethane material section bar pultrusion outlet.
9. the formation system of compound polyurethane material section bar according to claim 8 is characterized in that: said heat setting mould constitute by 2 ~ 3 heating-up zone and temperature from low to high, the temperature setting range is: 90oC ~ 250oC.
10. the formation system of compound polyurethane material section bar according to claim 8 is characterized in that: said cooling die is the water-cooled cooling die, and the temperature of its cooling water is 0oC～25oC.
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| CN2011104237686A CN102518932A (en) | 2010-12-25 | 2011-12-17 | Polyurethane composite profile and forming method for same |
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| CN2010106049155A CN102174982A (en) | 2010-12-25 | 2010-12-25 | Polyurethane composite profile and forming method |
| CN201010604915.5 | 2010-12-25 | ||
| CN2011104237686A CN102518932A (en) | 2010-12-25 | 2011-12-17 | Polyurethane composite profile and forming method for same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108774932A (en) * | 2018-07-23 | 2018-11-09 | 山东众甫新材料有限公司 | A kind of corrosion-resistant road deck and preparation, method for paving |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105131571A (en) * | 2015-09-18 | 2015-12-09 | 江苏众成复合材料有限责任公司 | Polyurethane composite solar photovoltaic module frame and preparation method thereof |
| CN108867369A (en) * | 2018-04-03 | 2018-11-23 | 武汉金麦特材料科技有限公司 | Bridge deck pavement structure |
| CN114250947A (en) * | 2022-01-11 | 2022-03-29 | 万华节能科技(烟台)有限公司 | High-compression-resistance high-flame-retardant spraying polyurethane hard foam refrigeration house terrace and construction process thereof |
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- 2010-12-25 CN CN2010106049155A patent/CN102174982A/en active Pending
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Application publication date: 20120627 |